East Sussex · England
External & façade joints in Plumpton Green, East Sussex
External mastic across Plumpton Green and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Joints where the bead has come unstuck
- Rigid filler in a joint that should flex
- Water getting into walls through failed joints
Landlord and commercial work in Plumpton Green
If you manage several properties in or around Plumpton Green, several properties can be quoted together. Just tell us the addresses and what each one needs.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
External mastic in Plumpton Green, done properly
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible exterior sealant takes up that movement. We work on concrete & block, render & cladding joints and façade panels, and the jobs we see most are joints pointed up with cement by mistake and cracked joints where brick meets render or frames.
Older homes in small places like Plumpton Green may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water normally gets in, and they need the right sealant at the right depth.
Every job is covered by our 12-month guarantee.
- Where
- Plumpton Green (BN7)
- Wider area
- East Sussex
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Quotes for external mastic in Plumpton Green
There’s no set price list. The quote depends on:
- Any mould that needs treating
- The old material and how stubborn it is
- Any working-time requirements on site
- How easy the joints are to reach
What you pay reflects the work, not guesswork. That’s why we ask about the job first and agree the price before starting.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- The type of property
- How many joints, rooms or windows are involved
- Where the job is, and your postcode
- Access, such as stairs, a lift or height
For external mastic in Plumpton Green, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and we will agree the price before any work begins.
Why deal with it now?
A failed movement joint lets water into the wall. Dealing with it early keeps the repair to the joint, rather than the wall around it. Older cottages and farmhouses around Plumpton Green can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, call 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
What you get with us
- We never seal over old sealant
- White, clear, grey or another colour, product permitting
- 180+ five-star Google reviews
- A sealant colour to suit the surroundings
See our cost guide and our reviews.
How the job changes by surface
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. We reseal them with an exterior sealant suited to the material.
Cladding and façade panels
If the façade has a specified sealant, that is what we use, or one the system allows. Send us any details you have about the façade.
What happens on the day
You do not need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the work takes anything from a few hours to several days, depending on the building for a typical job. Somewhere like Plumpton Green needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Before we arrive
- Clear the area around the work
- Tell us about any previous sealing or DIY attempts
- Let us know about parking restrictions
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work and give you a clear quote.
Read more
Questions from Plumpton Green
Can you help a landlord with a rental near Plumpton station?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear price.
Do you cover smaller places like Plumpton Green?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
What is backing rod for?
Closed-cell backing rod sets the depth of the sealant and stops it sticking to the back of the joint. That way it bonds to the two sides only and can stretch.
What sealant do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Will there be a smell?
It depends on the product. Some products have a noticeable smell, others very little.
What colours does the sealant come in?
We choose a sealant colour to suit the brick, stone or render. There’s a wide choice of exterior colours.
Where is Mr Mastic based?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
What does external mastic cost?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or email us and let us know what needs doing and where.
Towns and villages near Plumpton Green
What else we do in Plumpton Green
Walls and rooflines in Plumpton Green
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around All Saints, the joints between older walls, newer extensions and the roofline need a sealant that can move. Letting a property close to Plumpton station? Then outside joints that have cracked can let damp into a rental, so check them between lets.
Plumpton Green is about 3 miles south-east of Burgess Hill, in East Sussex. We carry out external mastic for homes and businesses in Plumpton Green and nearby, as part of our work across East Sussex. Plumpton Green is one of 289 places in East Sussex we cover. We also work in Brighton, about 8 miles from Plumpton Green.
Work in BN7 is quoted and booked the same way as anywhere else. External mastic is available to properties on Station Road, West Gate and Riddens Lane. Nearby, we also carry out external mastic in East Chiltington (1 mile south-east), Streat (1 mile south-west), South Chailey (2 miles east), Ditchling Common (2 miles north-west) and Plumpton (2 miles south). Further out, we also cover Seaford (13 miles south-east), Lewes (5 miles south-east), Hailsham (15 miles east), Crowborough (13 miles north-east), Uckfield (7 miles east) and Newhaven (11 miles south-east).
Landmarks near Plumpton Green
We work in homes and buildings around Chailey School and Fountain Inn and the streets around them. Plumpton Green has its own railway station: Plumpton station. A little further out are Ditchling Museum of Art + Craft (2.5 miles west) and Clayton Castle (4 miles south-west). For a walk, there’s Bedelands Farm Nature Reserve and Blackcap.
Common problems we fix in Plumpton Green
A lot of failed joints come down to preparation: joint faces that were dusty or damp, unprimed where they needed it, or still carrying old sealant. The new sealant then lets go long before it should.
Look out for these signs:
- Plants rooting in failed movement joints
- Cracked joints where brick meets render or frames
- Sealant that has lost its bond to the brick or render
- Water getting into walls through failed joints
For site and facilities teams at buildings such as Plumpton Primary School, its movement joints, gutters and trims need looking after like any other building’s.
What your quote should include
- Is the old sealant removed completely?
- Whether the sealant suits the joint
- How the colour is chosen
- How long to leave it before use
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Leave the joints unpainted unless we have said otherwise
- Check external joints each spring
- Never let anyone fill a movement joint with mortar
- Keep water from gutters off the wall
Only paint over the joint if we have confirmed the sealant can take paint. Many exterior sealants aren’t designed to be painted, and paint can crack as the joint moves.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established so early resealing is worth it.